Fix KPI data reported by ProxBinSearchProfile

Fix KPI data reported by ProxBinSearchProfile

List of changes made in ProxBinSearchProfile:
  - Removed reporting of redundant records with zero values
  - Fixed issue with results data from one step reported in the next step
  - Added 'Step_Id' field to reflect to which search step current record belongs
  - Added 'Confirmation_Retry' field to reflect retry number of current test.
    This value depends on 'confirmation' configuration option of a runner.

JIRA: YARDSTICK-1379

Change-Id: Idc3f7e26ece41ac0dfbfee659daf310a2879e024
Signed-off-by: Serhiy Pshyk <serhiyx.pshyk@intel.com>